发明人韩伟,冯建国,马晓峰. "Method for the Synthesis of Benzyl 3-oxo-1,8-dioxa-4,11-diazaspiro[5.6]dodecane-11-carboxylate" [P]. 中国发明专利, 专利号 CN 117751030 B, 授权公告日 2024-03-16.
发明人郑宇鹏,孙丽萍,陈志强. "A Process for Preparing High-Purity Benzyl 3-oxo-1,8-dioxa-4,11-diazaspiro[5.6]dodecane-11-carboxylate" [P]. 中国发明专利, 专利号 CN 117200340 B, 授权公告日 2019-01-25.
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